The poop to which you sat down on the toilet, felt and saw your poop come out..but as soon as you stand up, there's no poopie in the toilet! When you whipe, theres no poopie on the toilet paper either!
Person1: I pooped but it's not in the toilet bowl! Is it magic?
Person2: No, it's a ghost poopie.
Person1: Wait..Why are you in the bathroom with me?